Toro 74891 - Servicing the Spark Plug

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Figure40
ServicingtheSparkPlug
ServiceInterval:Every500hours—Replacethespark
plug(s).
ThesparkplugisRFIcompliant.Equivalentalternatebrand
plugscanalsobeused.
Type:ChampionXC12YC
AirGap:0.76mm(0.03inch)
RemovingtheSparkPlug
1.Disengagetheblade-controlswitch,movethemotion
controlsoutwardtotheparkposition,shutoffthe
engine,andremovethekey.
2.Beforeremovingthesparkplug(s),cleanthearea
aroundthebaseoftheplugtokeepdirtanddebrisout
oftheengine.
3.Removethesparkplug(Figure41).
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Figure41
CheckingtheSparkPlug
Important:Donotcleanthesparkplug(s).Always
replacethesparkplug(s)whenithas:ablackcoating,
wornelectrodes,anoilylm,orcracks.
Note:Ifyouseelightbrownorgrayontheinsulator,the
engineisoperatingproperly.Ablackcoatingontheinsulator
usuallymeanstheaircleanerisdirty.
Setthegapto0.76mm(0.03inch).
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Figure42
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